A pure Python chaskey cipher implementation developed initially for use with the donut_decryptor.

You can install donut_decryptor for usage using pip:

python -m pip install chaskey

For usage instructions use the following input at a python prompt:

> import chaskey

> help(chaskey.Chaskey)

• Implement non-CTR cipher modes
  • Electronic Code Book (ECB)
  • Cipher Block Chain (CBC)
  • Cipher Feedback Mode (CFB)
  • Output Feedback Mode (OFB)
  • Galois Counter Mode (GCM)
• Consider a class based definition of cipher modes to replace the current catch-all implementation